1389743905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{319849}}^1$

素因数の和:319944

約数の個数: 16

約数和(自身を含む): 1842336000

約数和(自身を除く): 452592095

約数列:

[1, 5, 11, 55, 79, 395, 869, 4345, 319849, 1599245, 3518339, 17591695, 25268071, 126340355, 277948781, 1389743905]

約数ペア:

[(1, 1389743905), (5, 277948781), (11, 126340355), (55, 25268071), (79, 17591695), (395, 3518339), (869, 1599245), (4345, 319849)]